首页
登录
职称英语
Global warming is the most serious problem humanity has ever faced. There’s
Global warming is the most serious problem humanity has ever faced. There’s
游客
2024-02-28
17
管理
问题
Global warming is the most serious problem humanity has ever faced. There’s more hype (宣传) on this environmental issue than any other. In the late 1970s computer models predicted that because of the heat-trapping buildup of carbon dioxide in the atmosphere, the earth would warm up by several degrees over the next century. A lot of bad weather gets linked to global warming in the media, which regularly predict that more and fiercer hurricanes, longer droughts and more severe rainstorms will result.
What has actually been going on? One computer model says the earth’s temperature should have already increased by an easily detectable 0.3 to 0.4 degrees Celsius since 1979. Some satellite data, however, show that the earth’s temperature has actually cooled slightly over the last 18 years.
And despite seasonal variations, the frequency of intense Atlantic hurricanes and their maximum wind speed have not increased over the past half-century.
If climate models turn out to be correct, it may be prudent to limit carbon-dioxide emissions in the future. But many experts feel there is no need to rush into drastic action. "We have a decade or so to collect data and refine our models before we might have to act," says Jerry North, professor of meteorology at Texas A&M. There is also time for scientists to develop carbon-intensive energy technologies, which we can switch to later at a lower cost.
"Even though it will disappoint many of you, the evidence is that you have a very bright future." This is how I finished my presentation at American University, eliciting a few chuckles from the audience.
On a more serious note, I asked the students to consider a radical proposition: Economic growth and technological progress are not enemies of the environment but, are perhaps its best friends, since they allow us to reduce humanity’s footprint on the natural world. High-tech agriculture boosts farm productivity, which means a cheaper good supply and more land spared for nature. Better sewage treatment means that our rivers and streams can run freer of pollutants. [br] Why is it possible that economic growth and technological progress are environmentally friendly?
选项
A、Because they can keep people away from the natural world.
B、Because they may help preserve more natural land.
C、Because they can increase productivity.
D、Because they may not produce pollutants.
答案
B
解析
转载请注明原文地址:https://tihaiku.com/zcyy/3489643.html
相关试题推荐
[originaltext]Lastweekwediscussedtheproblemofrisingprices,or,int
[originaltext]Lastweekwediscussedtheproblemofrisingprices,or,int
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
Noonewhoreadsthenewspaperscandoubttheseriousnessofcrimeinthisc
随机试题
Languagesi
Clearlyifwearetoparticipateinthesocietyinwhichwelivewemust
Zoologicalparksinmanycitiesexportbirdsfrommanylandsandareasourceof
Helooked______inthoseoldfashionedtrousers.A、abruptB、absoluteC、absurdD、ab
A.上皮萎缩 B.棘层松解,上皮内疱 C.上皮内水肿 D.上皮过度角化
患者,男性,25岁。1个月来无原因出现下肢出血点和瘀斑,伴牙龈出血,化验Hb12
下列哪种沟通形式不属于非语言性沟通( )A.面部表情 B.手势 C.身体运
在安排发展性支出时,首先应该安排的是()。A.逐步提高职工生活水平 B
电缆管道埋深应在()m,确因条件限制无法满足时,可适当减小。A.0.2~0
对于基金分红,一般银行系统默认为红利再投资。
最新回复
(
0
)